Ember The Dragon Tales has two elderly characters. Grumpy and The Magician. I'm sorry, it is but a novel, so I cannot show them to you. They must take form inside your own mind.
PS - Grumpy withholds a secret from June.
Grumpy:
The man had seen them coming. As they came near, he didn’t bother to look up from his work, an act normally considered rude in that place and time. “What’re you doing here with that beast, June?”
“Don’t be rude, sir. She’s not a beast. Beasts don’t talk.”
“Eh, so they don’t.”
“I’ve come to make proper introductions.”
At that unexpected announcement, the man looked at them at last. “Wha?”
“Mister Grayson, I’d like to introduce you to Miss Ember. Miss Ember, this is Mister Grayson. Everyone just calls him Grumpy. And Miss Ember is, as you know, sir, a dragon and the newest member of our village…
The Magician:
The old man’s little home was no more rich and no more poor than that of Agnes and Brand. Comfortable and serviceable, but not fancy. For a magician, it would have been simple to conjure luxuries. That he did not, augured well in Ember’s mind. A modest magician was usually one with wisdom. She noted that he used no magic in the preparation of their tea.
The fire was not up so she said, “May I assist?”
“Please yourself, My Lady.”
Ember motioned and the fireplace sprang to light
There's also an elderly main character in The Vampire and the History Professor. But I think promoting one novel should be enough for one day.